package dao;

import java.util.List;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.hibernate.LockMode;
import org.hibernate.Query;
import org.hibernate.Transaction;
import org.hibernate.criterion.Example;

import pojo.Cooperation;

/**
 * A data access object (DAO) providing persistence and search support for
 * Cooperation entities. Transaction control of the save(), update() and
 * delete() operations can directly support Spring container-managed
 * transactions or they can be augmented to handle user-managed Spring
 * transactions. Each of these methods provides additional information for how
 * to configure it for the desired type of transaction control.
 * 
 * @see pojo.Cooperation
 * @author MyEclipse Persistence Tools
 */

public class CooperationDAO extends BaseHibernateDAO {
	private static final Log log = LogFactory.getLog(CooperationDAO.class);
	// property constants
	public static final String NAME = "name";
	public static final String PHOTO = "photo";
	public static final String WEIGHT = "weight";

	public void save(Cooperation transientInstance) {
		log.debug("saving Cooperation instance");
		try {
			Transaction tx=getSession().beginTransaction(); 
			getSession().save(transientInstance);
			tx.commit();
			log.debug("save successful");
		} catch (RuntimeException re) {
			log.error("save failed", re);
			throw re;
		}
	}

	public void delete(Cooperation persistentInstance) {
		log.debug("deleting Cooperation instance");
		try {
			getSession().delete(persistentInstance);
			log.debug("delete successful");
		} catch (RuntimeException re) {
			log.error("delete failed", re);
			throw re;
		}
	}

	public Cooperation findById(java.lang.Integer id) {
		log.debug("getting Cooperation instance with id: " + id);
		try {
			Cooperation instance = (Cooperation) getSession().get(
					"pojo.Cooperation", id);
			return instance;
		} catch (RuntimeException re) {
			log.error("get failed", re);
			throw re;
		}
	}

	public List findByExample(Cooperation instance) {
		log.debug("finding Cooperation instance by example");
		try {
			List results = getSession().createCriteria("pojo.Cooperation").add(
					Example.create(instance)).list();
			log.debug("find by example successful, result size: "
					+ results.size());
			return results;
		} catch (RuntimeException re) {
			log.error("find by example failed", re);
			throw re;
		}
	}

	public List findByProperty(String propertyName, Object value) {
		log.debug("finding Cooperation instance with property: " + propertyName
				+ ", value: " + value);
		try {
			String queryString = "from Cooperation as model where model."
					+ propertyName + "= ?";
			Query queryObject = getSession().createQuery(queryString);
			queryObject.setParameter(0, value);
			return queryObject.list();
		} catch (RuntimeException re) {
			log.error("find by property name failed", re);
			throw re;
		}
	}

	public List findByName(Object name) {
		return findByProperty(NAME, name);
	}

	public List findByPhoto(Object photo) {
		return findByProperty(PHOTO, photo);
	}

	public List findByWeight(Object weight) {
		return findByProperty(WEIGHT, weight);
	}

	public List findAll() {
		log.debug("finding all Cooperation instances");
		try {
			String queryString = "from Cooperation co order by co.weight desc";
			Query queryObject = getSession().createQuery(queryString);
			return queryObject.list();
		} catch (RuntimeException re) {
			log.error("find all failed", re);
			throw re;
		}
	}

	public Cooperation merge(Cooperation detachedInstance) {
		log.debug("merging Cooperation instance");
		try {
			Transaction tx=getSession().beginTransaction(); 
			Cooperation result = (Cooperation) getSession().merge(
					detachedInstance);
			tx.commit();
			log.debug("merge successful");
			return result;
		} catch (RuntimeException re) {
			log.error("merge failed", re);
			throw re;
		}
	}

	public void attachDirty(Cooperation instance) {
		log.debug("attaching dirty Cooperation instance");
		try {
			getSession().saveOrUpdate(instance);
			log.debug("attach successful");
		} catch (RuntimeException re) {
			log.error("attach failed", re);
			throw re;
		}
	}

	public void attachClean(Cooperation instance) {
		log.debug("attaching clean Cooperation instance");
		try {
			getSession().lock(instance, LockMode.NONE);
			log.debug("attach successful");
		} catch (RuntimeException re) {
			log.error("attach failed", re);
			throw re;
		}
	}
}